| Date & Time: | May 2 2025, from 25:07 to 26:03 JST(+0900) |
| Composed 8 shots with 8 minutes exposed |
| Optical: | TAKAHASHI 16cm(6.3") epsilon (f=530mm, F3.3) |
| with IDAS LPS-D1 light-pollution suppression filter |
| Auto-guided with TAKAHASHI JP Equatorial+SBIG STV |
| CMOS Camera: | ZWO ASI2600MC Pro (Cooled temp.: -15°C) |
| Location: | Ooizumi, Hokuto city, Yamanashi pref. |
| B312 / Dark Nebula, type 4 E |
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| R.A. | 18h 32m 00.0s (2000.0) |
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| Dec. | -15°36' 00" (2000.0) |
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| Apparent Size | 85' |
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| Real Size | N/A |
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| Magnitude | - |
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| Distance | N/A |
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| Other IDs | LDN 379 |
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This image shows the dark nebula Barnard 312 set against the backdrop of the Milky Way, which is located about 1 degree south of γ Scuti, the southernmost star of the constellation.
With an apparent size of approximately 1.2 degrees, it appears as a clear, hole-like structure in the Milky Way, easily recognizable even through binoculars.
The northern edge is well-defined, while the southern boundary appears diffuse.
To the south and southwest of the dark nebula, an extremely faint Hƒ¿ nebulae spread out, with emission nebulae such as LBN 63 being identified in this region.
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